Hi Martin,

That study has been discussed several times here on the forum. As I have stated previously, there are several flaws with the study:

The leeching effect is observed only with certain high-powered detergents and under very high water temps. neither of which any home consumer would encounter

There is no evidence in the thousands of studies worldwide that use animals both housed and provided water via polycarbonate (LEXAN) cages/water bottles that there is any increase in the purported lesions/effects of that study amongst control animals.

Pete